Reactions 1704, p192 - 2 Jun 2018 Philadelphia chromosome-negative acute promyelocytic leukaemia: case report A 59-year-old man developed Philadelphia (Ph) chromosome-negative acute promyelocytic leukaemia following treatment with imatinib [route not stated]. The man, who was diagnosed with chronic myeloid leukaemia (CML) at the age of 51 years, had been receiving imatinib 300–400 mg/day [exact dosage not stated]. He had been maintaining complete molecular response since 30 months post the diagnosis of CML. Subsequently, a bone marrow aspirate revealed increased abnormal promyelocytes with azurophilic granules and Auer rods. The results of subsequent fluorescence in situ hybridisation (FISH) test and PCR test were consistent with the diagnosis of Ph-negative APL. The FISH test and PCR test detected PML-RARA; the translocation breakpoint was located in PML intron 6. It was suspected that the Ph-negative APL was due to the administration of imatinib [duration of treatment to reaction onset not stated]. The man was treated with induction chemotherapy with all- trans retinoic acid, followed by one cycle of consolidation therapy, respectively. Following the chemotherapy, the PML- RARA became undetectable by FISH and PCR. The imatinib therapy was discontinued. Author comment: "Here, we describe a case of Ph- negative acute promyelocytic leukemia (APL) observed in a patient who had been in long-term remission for CML and discuss the clinical and molecular characteristics of imatinib- associated Ph-negative secondary myeloid malignancies." Morita K, et al. Philadelphia chromosome-negative acute promyelocytic leukemia manifesting after long-term imatinib treatment for chronic myeloid leukemia: a case report and literature review. Annals of Hematology 97: 1105-1109, No. 6, Jun 2018. Available from: URL: https://doi.org/10.1007/s00277-018-3263-3 - Japan 803323256 0114-9954/18/1704-0001/$14.95 Adis © 2018 Springer International Publishing AG. All rights reserved Reactions 2 Jun 2018 No. 1704
Reactions Weekly – Springer Journals
Published: Jun 2, 2018
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